““Then there are the secondary, mostly “social” emotions, such as anxiety, grief, guilt, pride, vengeance, and love. These may be unique to humans—hence, at the lower level in our evolutionary mountain landscape—and somewhat more liable to cultural manipulation and variation than the primary, “Darwinian” emotions. Thus, only humans seek revenge or redemption across lifetimes and generations, whatever the cost, although the nature of the deeds that trigger insult or remorse may vary considerably across societies, and the means to counter them may range even wider. Another””
